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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*
*/
package org.apache.mina.statemachine;
import junit.framework.TestCase;
import org.apache.mina.statemachine.State;
import org.apache.mina.statemachine.StateControl;
import org.apache.mina.statemachine.StateMachine;
import org.apache.mina.statemachine.context.DefaultStateContext;
import org.apache.mina.statemachine.context.StateContext;
import org.apache.mina.statemachine.event.Event;
import org.apache.mina.statemachine.transition.AbstractTransition;
/**
* Tests {@link StateMachine}.
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev: 586090 $, $Date: 2007-10-18 21:12:08 +0200 (Thu, 18 Oct 2007) $
*/
public class StateMachineTest extends TestCase {
public void testBreakAndContinue() throws Exception {
State s1 = new State("s1");
s1.addTransition(new BreakAndContinueTransition("foo"));
s1.addTransition(new SuccessTransition("foo"));
StateContext context = new DefaultStateContext();
StateMachine sm = new StateMachine(new State[] { s1 }, "s1");
sm.handle(new Event("foo", context));
assertEquals(true, context.getAttribute("success"));
}
public void testBreakAndGotoNow() throws Exception {
State s1 = new State("s1");
State s2 = new State("s2");
s1.addTransition(new BreakAndGotoNowTransition("foo", "s2"));
s2.addTransition(new SuccessTransition("foo"));
StateContext context = new DefaultStateContext();
StateMachine sm = new StateMachine(new State[] { s1, s2 }, "s1");
sm.handle(new Event("foo", context));
assertEquals(true, context.getAttribute("success"));
}
public void testBreakAndGotoNext() throws Exception {
State s1 = new State("s1");
State s2 = new State("s2");
s1.addTransition(new BreakAndGotoNextTransition("foo", "s2"));
s2.addTransition(new SuccessTransition("foo"));
StateContext context = new DefaultStateContext();
StateMachine sm = new StateMachine(new State[] { s1, s2 }, "s1");
sm.handle(new Event("foo", context));
assertSame(s2, context.getCurrentState());
sm.handle(new Event("foo", context));
assertEquals(true, context.getAttribute("success"));
}
private static class SuccessTransition extends AbstractTransition {
public SuccessTransition(Object eventId) {
super(eventId);
}
public SuccessTransition(Object eventId, State nextState) {
super(eventId, nextState);
}
@Override
protected boolean doExecute(Event event) {
event.getContext().setAttribute("success", true);
return true;
}
}
private static class BreakAndContinueTransition extends AbstractTransition {
public BreakAndContinueTransition(Object eventId) {
super(eventId);
}
public BreakAndContinueTransition(Object eventId, State nextState) {
super(eventId, nextState);
}
@Override
protected boolean doExecute(Event event) {
StateControl.breakAndContinue();
return true;
}
}
private static class BreakAndGotoNowTransition extends AbstractTransition {
private final String stateId;
public BreakAndGotoNowTransition(Object eventId, String stateId) {
super(eventId);
this.stateId = stateId;
}
public BreakAndGotoNowTransition(Object eventId, State nextState, String stateId) {
super(eventId, nextState);
this.stateId = stateId;
}
@Override
protected boolean doExecute(Event event) {
StateControl.breakAndGotoNow(stateId);
return true;
}
}
private static class BreakAndGotoNextTransition extends AbstractTransition {
private final String stateId;
public BreakAndGotoNextTransition(Object eventId, String stateId) {
super(eventId);
this.stateId = stateId;
}
public BreakAndGotoNextTransition(Object eventId, State nextState, String stateId) {
super(eventId, nextState);
this.stateId = stateId;
}
@Override
protected boolean doExecute(Event event) {
StateControl.breakAndGotoNext(stateId);
return true;
}
}
}